import sys
import itertools
# import numpy as np
import time
import math
import heapq
from collections import defaultdict
sys.setrecursionlimit(10 ** 7)
 
INF = 10 ** 18
MOD = 10 ** 9 + 7
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines

# map(int, input().split())

x = int(input())

if x >= 1800:
    print(1)
elif x >= 1600:
    print(2)
elif x >= 1400:
    print(3)
elif x >= 1200:
    print(4)
elif x >= 1000:
    print(5)
elif x >= 800:
    print(6)
elif x >= 600:
    print(7)
elif x >= 400:
    print(8) import sys sys import itertools itertools import time time import math math import heapq heapq from collections import defaultdict sys.setrecursionlimit(10 ** 7) sys.setrecursionlimit sys setrecursionlimit 10 ** 7 10 7 INF = 10 ** 18 INF 10 ** 18 10 18 MOD = 10 ** 9 + 7 MOD 10 ** 9 + 7 10 ** 9 10 9 7 read = sys.stdin.buffer.read read sys.stdin.buffer.read sys.stdin.buffer sys.stdin sys stdin buffer read readline = sys.stdin.buffer.readline readline sys.stdin.buffer.readline sys.stdin.buffer sys.stdin sys stdin buffer readline readlines = sys.stdin.buffer.readlines readlines sys.stdin.buffer.readlines sys.stdin.buffer sys.stdin sys stdin buffer readlines x = int(input()) x int(input()) int input() input if x >= 1800:
    print(1)
elif x >= 1600:
    print(2)
elif x >= 1400:
    print(3)
elif x >= 1200:
    print(4)
elif x >= 1000:
    print(5)
elif x >= 800:
    print(6)
elif x >= 600:
    print(7)
elif x >= 400:
    print(8) x >= 1800 x 1800 print(1) print 1 elif x >= 1600:
    print(2) x >= 1600 x 1600 print(2) print 2 elif x >= 1400:
    print(3) x >= 1400 x 1400 print(3) print 3 elif x >= 1200:
    print(4) x >= 1200 x 1200 print(4) print 4 elif x >= 1000:
    print(5) x >= 1000 x 1000 print(5) print 5 elif x >= 800:
    print(6) x >= 800 x 800 print(6) print 6 elif x >= 600:
    print(7) x >= 600 x 600 print(7) print 7 elif x >= 400:
    print(8) x >= 400 x 400 print(8) print 8 read = sys.stdin.buffer.read sys.stdin.buffer.read read INF = 10 ** 18 10 ** 18 INF readline = sys.stdin.buffer.readline sys.stdin.buffer.readline readline x = int(input()) int(input()) x MOD = 10 ** 9 + 7 10 ** 9 + 7 MOD readlines = sys.stdin.buffer.readlines sys.stdin.buffer.readlines readlines
import sys
import itertools
# import numpy as np
import time
import math
import heapq
from collections import defaultdict
sys.setrecursionlimit(10 ** 7)
 
INF = 10 ** 18
MOD = 10 ** 9 + 7
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines

# map(int, input().split())

x = int(input())

if x >= 1800:
    print(1)
elif x >= 1600:
    print(2)
elif x >= 1400:
    print(3)
elif x >= 1200:
    print(4)
elif x >= 1000:
    print(5)
elif x >= 800:
    print(6)
elif x >= 600:
    print(7)
elif x >= 400:
    print(8)
